大径木と森林構造属性がインド・ラジャスタン州の熱帯乾燥落葉樹林におけるバイオマスと炭素分布を規定する
Large tree and forest structural attributes drive biomass and carbon distribution in tropical dry deciduous forests of Rajasthan, India (原題)
Naveen Kumar, Archana Meena
🤖 gxceed AI 要約
日本語
インド・ラジャスタン州の熱帯乾燥落葉樹林2保護区・5林分でバイオマスと炭素蓄積を推定した研究。林分間で炭素量は大きく変動し、最大林分では1480 Mg C/haに達した。樹木密度と胸高断面積が炭素蓄積の主要規定因子であり、DBH70cm超の大径木が炭素の40〜80%を占めた。成熟木の保全と持続的管理の重要性を示す。
English
This study quantified biomass and carbon stocks across five stands in two wildlife sanctuaries of tropical dry deciduous forest in Rajasthan, India, using allometric equations and Forest Survey of India protocols. Carbon varied widely among stands (up to 1,480 Mg C/ha), with tree density and basal area as key drivers. Large trees (DBH >70 cm) accounted for 40–80% of carbon, underscoring the value of conserving mature trees.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本企業のScope 3・森林クレジット調達や自然資本開示（TNFD）を検討する際、熱帯林の炭素蓄積原単位の実証値として参照価値がある。ただし日本固有の政策・開示制度との直接接続は弱い。
In the global GX context
Adds empirical ground-truth data on tropical dry forest carbon density relevant to nature-based carbon accounting, REDD+ and TNFD-style natural capital assessment. It reinforces the scientific basis for mature-tree conservation in carbon crediting schemes, though it does not engage disclosure frameworks directly.
👥 読者別の含意
🔬研究者:熱帯乾燥林の炭素蓄積原単位と林分構造の関係を定量化した実証データとして活用できる。
🏢実務担当者:森林クレジットや自然資本・生物多様性開示の基礎データとして参照可能。
🏛政策担当者:森林保全政策や炭素吸収源の評価において成熟木保護の優先度を示す根拠となる。
📄 Abstract（原文）
Introduction Dry tropical forests store significant amounts of biomass carbon in vegetation and play a critical role in global carbon sequestration. The present study estimated the biomass and carbon storage in different vegetation components across five forest stands in two wildlife sanctuaries representing tropical dry deciduous forests. Methods Tree aboveground and belowground biomass were quantified using allometric equations, and shrub biomass, herb biomass, and litter biomass were evaluated following protocols by the Forest Survey of India and converted to carbon stocks using standard conversion factors. Results The findings revealed significant variation in vegetation biomass among two wildlife sanctuaries and forest stands. Jamwa Ramgarh sanctuary exhibited significantly higher biomass and carbon than Nahargarh ( p < 0.0001), with Digota forest stand (S5) recording the highest values (3115.22 Mg/ha; 1480.08 Mg C/ha). Significant variations were observed among tree biomass carbon (359–1,477 Mg C/ha), understory biomass carbon (1.68–2.5 Mg C/ha), and litter biomass carbon (0.25–0.5 Mg C/ha) ( p < 0.0001). Aboveground biomass contributed the largest share (66–70%) of total vegetation carbon, followed by belowground biomass (23–33%), with shrubs, herbs, and litter accounting for minor proportions. Discussion Tree density and the basal area emerged as the most significant forest structural parameters determining carbon storage. Dominating tree species such as Anogeissus pendula and Boswellia serrata contributed substantially to tree carbon storage. Furthermore, a 40–80% proportion of carbon accumulation by large diameter trees (DBH > 70 cm) in these forests highlights the importance of mature trees in overall carbon sequestration. The study emphasizes that sustainable management and conservation of mature trees are required to increase the vegetation biomass and carbon storage in tropical dry deciduous forests of semi-arid ecosystems.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3389/ffgc.2026.1815587first seen 2026-10-18 04:41:43
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